Patents by Inventor Yasunori Tsujino
Yasunori Tsujino has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210047530Abstract: In the present invention, a photocurable composition for a support material for an inkjet 3D printer comprises a water-soluble ethylenically unsaturated monomer containing an ionic group and a counter ion, and a water content is not more than 10 mass % in 100 mass % of the photocurable composition for a support material. It is preferably that the photocurable composition for a support material for an inkjet 3D printer further comprises a photopolymerization initiator.Type: ApplicationFiled: February 26, 2019Publication date: February 18, 2021Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Hirotaka Mizoguchi, Yasunori Tsujino
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Publication number: 20190241684Abstract: In the present invention, a photocurable support material composition for an inkjet 3D printer comprises a water-soluble ethylenically unsaturated monomer containing an ionic group and a counter ion, and comprises a photopolymerization initiator. The ionic group is preferably at least one selected from a group consisting of carboxylic acid group, phosphoric acid group, and sulfonic acid group. The counter ion is preferably at least one selected from a group consisting of sodium ion, potassium ion, and ammonium ion.Type: ApplicationFiled: August 30, 2017Publication date: August 8, 2019Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Yasunori Tsujino, Minoru Urata, Noriaki Majima
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Patent number: 8674038Abstract: The present invention provides a curable resin composition which exhibits the following properties: excellent basic performances such as heat resistance; sufficient optical characteristics such as transparency; and excellent demoldability when a molded body of the composition is demolded at the time of molding. The present invention further provides a molded body obtainable by molding the curable resin composition and a production method thereof. A curable resin composition for molded bodies, including a thermocurable resin, wherein the curable resin composition for molded bodies includes at least one compound selected from the group consisting a compound having a boiling point of 260° C. or less at one atmospheric pressure, a silicon compound having a polyoxyalkylene chain, a silicon compound having an aryl group, and a silicon compound having a polyoxyalkylene chain and an aryl group.Type: GrantFiled: September 25, 2008Date of Patent: March 18, 2014Assignee: Nippon Skokubai Co., Ltd.Inventors: Junichi Nakamura, Yasunori Tsujino, Kunio Takahashi, Ai Matsumoto, Masafumi Yamashita, Yukihiro Kasano, Tatsushi Hirauchi
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Patent number: 8524841Abstract: To provide: a curable resin composition which can be continuously produced without gelling during production, and has excellent basic performances such as heat resistance and moisture resistance; an optical member which has excellent optical characteristics such as high transparency and exhibits excellent performances in a harsh use environment; and a method for controlling an optical material. A curable resin composition including an organic resin component and a metalloxane component, wherein the organic resin component includes a resin component having an Abbe number of 45 or more and the metalloxane component has a metalloxane bond; an optical material comprising the above-mentioned curable resin composition; an optical member produced by curing the optical material; and a method for controlling an Abbe number and/or a refractive index of an optical material.Type: GrantFiled: September 28, 2007Date of Patent: September 3, 2013Assignee: Nippon Shokubai Co., Ltd.Inventors: Junichi Nakamura, Yasunori Tsujino, Ai Matsumoto, Yukihiro Kasano, Masafumi Yamashita, Takuo Sugioka, Kunio Takahashi
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Patent number: 8270103Abstract: An imaging lens unit configured for processing by a solder reflow process, and includes a lens group of one or more lenses; and a lens tube supporting the lens group. The imaging lens unit comprises one or more cationically-cured epoxy resin lenses formed from an cationically-curable epoxy resin material, the lens tube is formed from a thermoplastic resin material having a deflection temperature under load of at least 200° C. The imaging lens unit has a clearance between the lens tube and at least one of the cationically-cured epoxy resin lenses and has lens supporting portions provided at least three locations inside the lens tube that support the at least one cationically-cured epoxy resin lens. The lens unit can be miniaturized. The imaging lens unit also provides excellent optical characteristics without deteriorating the optical characteristics in alignment of the centers of the lens and the diaphragm.Type: GrantFiled: April 16, 2009Date of Patent: September 18, 2012Assignees: Komatsulite Mfg. Co., Ltd., Nippon Shokubai Co., LtdInventors: Yoshihiro Miyawaki, Yuji Muraoka, Nobuyuki Ando, Junichi Nakamura, Yasunori Tsujino, Masafumi Yamashita, Yukihiro Kasano
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Patent number: 8014071Abstract: The present invention provides a light selective transmission filter which selectively shields light and has a high transmittance of light at a specific wavelength such as visible rays, and which has a sufficiently reduced thickness and excellent heat resistance. The present invention further provides a lens unit including such a light selective transmission filter. The light selective transmission filter selectively reducing a transmittance of light has a thickness of less than 200 ?m and includes a base material containing a functional film with reflow resistance. The lens unit includes such a light selective transmission filter and a lens.Type: GrantFiled: December 27, 2007Date of Patent: September 6, 2011Assignee: Nippon Shokubai Co., Ltd.Inventors: Ai Matsumoto, Tatsushi Hirauchi, Junichi Nakamura, Yasunori Tsujino, Shinpei Sato, Keiko Ando, Yoko Matsui, Kozo Tajiri
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Publication number: 20110038065Abstract: The present invention provides an imaging lens unit configured to be processed by the solder reflow process, can be miniaturized, and has sufficient thermal resistance for the reflow temperatures. The imaging lens unit also provides excellent optical characteristics such as transmissivity, a refractive index, and the like without deteriorating the optical characteristics in alignment of the centers of the lens and the diaphragm even after the reflow process, so as to contribute to reduction in the size and an increase in the capabilities. The imaging lens unit is configured to be processed by a solder reflow process, and includes a lens group consisting of one or more lenses; and a lens tube that supports the lens group, wherein the imaging lens unit comprises one or more cationically-cured epoxy resin lenses formed from an cationically-curable epoxy resin material, the lens tube is formed from a thermoplastic resin material having a deflection temperature under load of not lower than 200° C.Type: ApplicationFiled: April 16, 2009Publication date: February 17, 2011Applicants: KOMATSULITE MFG. CO., LTD., NIPPON SHOKUBAI CO., LTD.Inventors: Yoshihiro Miyawaki, Yuji Muraoka, Nobuyuki Ando, Junichi Nakamura, Yasunori Tsujino, Masafumi Yamashita, Yukihiro Kasano
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Publication number: 20100256313Abstract: The present invention provides a curable resin composition which exhibits the following properties : excellent basic performances such as heat resistance; sufficient optical characteristics such as transparency; and excellent demoldability when a molded body of the composition is demolded at the time of molding. The present invention further provides a molded body obtainable by molding the curable resin composition and a production method thereof. A curable resin composition for molded bodies, including a thermocurable resin, wherein the curable resin composition for molded bodies includes at least one compound selected from the group consisting a compound having a boiling point of 260° C. or less at one atmospheric pressure, a silicon compound having a polyoxyalkylene chain, a silicon compound having an aryl group, and a silicon compound having a polyoxyalkylene chain and an aryl group.Type: ApplicationFiled: September 25, 2008Publication date: October 7, 2010Applicant: Nippon Shokubai Co., Ltd.Inventors: Junichi Nakamura, Yasunori Tsujino, Kunio Takahashi, Ai Matsumoto, Masafumi Yamashita, Yukihiro Kasano, Tatsushi Hirauchi
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Patent number: 7723407Abstract: It is an object of the present invention to provide a resin composition which can form cured formulations having various excellent properties such as an insulating property, thermal shock resistance, moldability/formability and strength, and exhibit an excellent appearance in which transparency is enhanced, a resin composition whose cured thin film has excellent flame retardancy, good mechanical property and heat resistance, a dispersing element containing an inorganic microfine particle which can give a flame retardancy to a resin, to which the inorganic microfine particle is added, and can reduce a hygroscopic property to the extent possible, a method for producing the same and a cured formulation obtained by using the resin composition.Type: GrantFiled: August 5, 2005Date of Patent: May 25, 2010Assignee: Nippon Shokubai Co., Ltd.Inventors: Takuo Sugioka, Yasunori Tsujino
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Publication number: 20090010603Abstract: To provide to a resin composition for an optical packaging material having a coefficient of thermal expansion approximately same as that of quartz and Pyrex (registered trade name) and capable of providing an optical packaging material exhibiting excellent flame retardancy and an optical packaging component, and an optical module and its production method. A molded body, an optical packaging component and an optical module having a low coefficient of thermal expansion and excellent flame retardancy can be obtained using a resin composition for an optical packaging material comprising a resin and inorganic fine particles which are made of a hydrolyzed condensate compound of an alkoxide compound and/or a carboxylic acid salt compound and have an average radius of gyration of 50 nm or smaller.Type: ApplicationFiled: October 7, 2005Publication date: January 8, 2009Inventors: Takuo Sugioka, Yasunori Tsujino, Kozo Tajiri, Yoshinobu Asako
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Publication number: 20080165421Abstract: The present invention provides a light selective transmission filter which selectively shields light and has a high transmittance of light at a specific wavelength such as visible rays, and which has a sufficiently reduced thickness and excellent heat resistance. The present invention further provides a lens unit including such a light selective transmission filter. The light selective transmission filter selectively reducing a transmittance of light has a thickness of less than 200 ?m and includes a base material containing a functional film with reflow resistance. The lens unit includes such a light selective transmission filter and a lens.Type: ApplicationFiled: December 27, 2007Publication date: July 10, 2008Applicant: Nippon Shokubai Co., Ltd.Inventors: Ai Matsumoto, Tatsushi Hirauchi, Junichi Nakamura, Yasunori Tsujino, Shinpei Sato, Keiko Ando, Yoko Matsui, Kozo Tajiri
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Publication number: 20080085985Abstract: To provide: a curable resin composition which can be continuously produced without gelling during production, and has excellent basic performances such as heat resistance and moisture resistance; an optical member which has excellent optical characteristics such as high transparency and exhibits excellent performances in a harsh use environment; and a method for controlling an optical material. A curable resin composition including an organic resin component and a metalloxane component, wherein the organic resin component includes a resin component having an Abbe number of 45 or more and the metalloxane component has a metalloxane bond; an optical material comprising the above-mentioned curable resin composition; an optical member produced by curing the optical material; and a method for controlling an Abbe number and/or a refractive index of an optical material.Type: ApplicationFiled: September 28, 2007Publication date: April 10, 2008Applicant: Nippon Shokubai Co., Ltd.Inventors: Junichi Nakamura, Yasunori Tsujino, Ai Matsumoto, Yukihiro Kasano, Masafumi Yamashita, Takuo Sugioka, Kunio Takahashi
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Publication number: 20060029811Abstract: It is an object of the present invention to provide a resin composition which can form cured formulations having various excellent properties such as an insulating property, thermal shock resistance, moldability/formability and strength, and exhibit an excellent appearance in which transparency is enhanced, a resin composition whose cured thin film has excellent flame retardancy, good mechanical property and heat resistance, a dispersing element containing an inorganic microfine particle which can give a flame retardancy to a resin, to which the inorganic microfine particle is added, and can reduce a hygroscopic property to the extent possible, a method for producing the same and a cured formulation obtained by using the resin composition.Type: ApplicationFiled: August 5, 2005Publication date: February 9, 2006Applicant: Nippon Shokubai Co., Ltd.Inventors: Takuo Sugioka, Yasunori Tsujino